Fuse-mounting block



Nov. 6 1923.

C. F. GILCHRIST FUSE MOUNTING BLOCK Filed June 21 INVENTOR. Clafenc'ei' 6170122152.

ATTORNEY Patented Nov. 6, 1923.

UNITED STATES CLARENCE F. GILCHRIST, OF TOLEDO, OHIO.

FUSE-MOUNTING BLOCK.

Application filed June 21, 1919. Serial No. 305,900.

To all whom it may concern:

to it known that I, CLARENCE F. GIL- (tnms'r, a citizen of the United States, residing at Toledo, in the county of Lucas and State of Ohio, have invented certain new and useful Improvements in Fuse-Mounting Blocks, of which I declare the following to be a full, clear, and exact description.

This invention relates to fuses and more particularly to a block for mounting the fuse.

An object of the invention is the construction of a fuse mounting block which is simple, substantial and durable, and will retain its shape regardless of Oll and water.

Another ob ect is the construction of such a block whereby it can be formed from punching requiring no machining and which facilitates the manufacture thereof in large quantities.

Further objects of this inventlon relate to economies of manufacture and details of construction as will hereinafter appear from the detailed description to follow. I accomplish the objects of my invention in one instance by the devices and means described in the following specification, but it is evident that the same may be varied widely without departing from the scope of the invention as pointed out in the appended claims. A structure constituting one embodiment of my invention, which may be the preferred, is illustrated in the accompanying drawings forming a part thereof, in which:

Figure I is a side view of the complete mounting block with a fuse in place and leads attached.

Fig. II is a longitudinal sectional view of the mounting block taken on the line 11-- II of Fig. III.

Figs. III and IV are respectively, a top plan view and an end view of the block.

Fig. V is a perspective view of an enclosed fuse of common form for the support of which this block is adapted.

Figs. VI and VII are perspective views of stampings forming parts of the mounting block.

In the drawing, similar reference numerals refer to similar parts throughout the several views, and the sectional view is taken looking in the direction of the arrows at the ends of the section lines.

A rectangular hollow member 5 which may be stamped out and pressed up from sheet metal as for example, sheet steel comprises a base flan 'e 6 which may or may not be continuous. Within this base member is a strip 7 of insulating material preferably fibre impregnated with bakelite, as an insulator thus formed, being impervious to oil and water, does not warp, swell or get out of shape when subjected to the same. This strip 7 is shaped to fit snugly within the base member 5. A similar strip of insulat-in material 8 overlies the base member an carries a pair of terminal clips 9 and fuse attaching clips 10. These clips are secured to the base member bythe means of rivets 11, in the manner illustrated. It will be noted from Fig. II that the base member 5. and the two strips of insulation are rovided with alining openings, arranged in a row equally distant from the sides, the openings in the base member being larger than the openings in the strips of insulation, so that when the parts are assembled the base member is effectively insulated from the clips. A washer 12 is shown under one head of each rivet.

The terminal clips 9, one of which is shown alone in Fig. VI, have two upstanding ears 15 which serve to prevent turning of the lead terminal 16 and these clips are held from turning about the rivets 11 by binding screws 1-7. These screws 17 are threaded into the clips 9 for clamping the terminals 16 thereto and extend down through alining openings in the base member and the two strips of insulation. The opening in the base member is made larger than the screw and the openings in the strips, to effectively insulate the base from the screw, just as was described in connection with the rivets 11. These screws 17 serve the double purpose of securing the lead terminals 16 to the terminal clips 9, and of preventing the clips 9 from turning about the rivets 11. Each of the clips 10, shown by itself in Fig. VII, is a bifurcated resilient member having a pair of ears 18 which serve to assist in positioning the fuse. This mounting is adapted to hold a standard enclosed fuse 19, an example of which is illustrated in Fig. V.

By constructing the base member 5 with the openings for the rivets and terminal screws located mid-way between the sides and correspondingly spaced from the ends as shown and by constructing the insulation strips in a similar manner, the arts comprising this fuse block can be quickly and accurately assembled, no small insulating sleeves or insulating washers being required, and at the same time a strong, well insulated and inexpensive mounting block is obtained. The lnsulating strip 7 thus serves to accurately position both the rivets 11 and the screws 17 so that under no circumstances can those parts come into electritrary my invention contemplates broadly all proper changes, as well as the omission of immaterial elements and the substitution of equivalents therefor, as circumstances may su gest or necessity render expedient.

aving thus described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. A fuse mounting block including a metal base, a pair of fuse holding clips, means for securing said pair of clips to said base, and a single member for positioning both of said means out of direct contact with said base.

2. A fuse mounting block includifig a metal base, a flat stri of insulation on one side of said base, a air of fuse holding clips on the opposite si e thereof and insulated therefrom, means for positioning said strip relative to said base, and means for securing said clips to said base, said strip being adapted to position said securing means out of contact with said base.

3. A fuse mounting block comprising a metal base, a strip of insulation on one side of said base and a pair of fuse holding clips on the opposite side thereof and insulated therefrom, means for positioning said strip relative to said base and means for securing said clips to said base, said strip having openings adapted to receive and position said securing means out of contact with said base.

4. In a fuse mountin block, a hollow metal base, a strip of insu ation fitting within said base, a fuse holding clip, means insulated from said base for securing said clip to said base, said strip and said base having alined openings to receive said means the opening in said base being appreciably larger than said securing means and the opening in said strip serving to position said means out of contact with said base.

5. A fuse mounting block com rising a hollow metal base, a strip of insu ation fitting within said base, a pair of fuse holding clips insulated from and supported by said base, said strip and said base having clips to said base, said base and sai alining openings, securin means for said clips passing through sa1d openings, the openings in said base being larger than the openings in said strip whereb said securing means and said base are he d'out of contact.

6. A fuse mounting block comprising a hollow sheet metal base, a strip of insulation proportioned to fit within said base, a pair of'fuse holding clips and a. pair of terminal clips supported thereon and insulated therefrom, means for clampin said stri having alining openings for receivin sai clamping means, the openings in sai base being appreciably larger than the openings in said strip whereby the clamping means is spaced out of contact with said base.

7. A .fuse mounting block comprising a hollow sheet metal base, a strip of insulating material constructed to fit within said base, a second similar strip of insulating material adapted to overlie said base, a pair of fuse holding clips and a pair of terminal clips ada ted to overlie said second strip, means or securing said clips and said strips to said base and lead attaching means threaded into said. terminal clips and passing through said base and said strips, said base and said strips being provided with openings for said securing means and said attaching means the openings in the base being appreciably larger than the openings in the strips.

8. A fuse mounting block comprising a base having a flange, a strip of insulation on one side of said base constructed to fit within said flange, a pair of terminal clips on the opposite side of said base and insulated therefrom, a pair of fuse holding cli s in contact with said terminal clips, said base, strip and clips having alined openings, the openin in the base being ma terially larger t an the openings in the strip and means for securing said clips and strip to said base the strip serving to position the securing means out of contact with the base.

9. A fuse mounting block comprising a sheet metal base having a marginal flange, a strip of insulation on one side of said base and retained in position by said flange, a pair of spaced fuse holding clips carried by said base and insulated therefrom, means for securing said clips to said base, said clips, strip and base having alined openings for said means, the openings in the base being larger than the openings in the strip whereby the strip prevents contact between the baseand securing means.

10. A fuse mounting block comprising a sheet metal base having a flange portion forming a support therefor, stri s of insulation contiguous to opposite si es of said base, one of said strips being constructed to singly fit within the confines of said whereby said clips are efi'ectively spaced flange, a pair of fuse holding clips on said and the securing rivets held out of contact other strip, securing rivets passing through with said base.

said clips, base and strips to bind the same In testimony whereof, I afiix my signa- 5 together, the said base being provided with tllrea rivet opening of greater diameter than the corresponding opening in said one strip CLARENCE F. GILCHRIST. 

